Hammer head



FIG. 1 is a perspective view of the hammer head showing my new design, wherein the hammer head is attached to a handle shown in broken lines;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plane view thereof; and,

FIG. 7 is a bottom plane view thereof.

The broken line showing in FIGS. 1-7 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a hammer head, as shown and described. 